Turn on output tree tracking.
--
MOS_MIGRATED_REVID=129887102
diff --git a/src/main/java/com/google/devtools/build/lib/buildtool/BuildRequest.java b/src/main/java/com/google/devtools/build/lib/buildtool/BuildRequest.java
index 98a40e2..5252ff6 100644
--- a/src/main/java/com/google/devtools/build/lib/buildtool/BuildRequest.java
+++ b/src/main/java/com/google/devtools/build/lib/buildtool/BuildRequest.java
@@ -245,7 +245,7 @@
@Option(name = "output_tree_tracking",
oldName = "experimental_output_tree_tracking",
- defaultValue = "false",
+ defaultValue = "true",
category = "undocumented",
help = "If set, tell the output service (if any) to track when files in the output "
+ "tree have been modified externally (not by the build system). "
